/*
 * Copyright (c) 2011-2020, baomidou (jobob@qq.com).
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * <p>
 * https://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.baomidou.mybatisplus.core.enums;

import com.baomidou.mybatisplus.core.conditions.ISqlSegment;
import com.baomidou.mybatisplus.core.toolkit.StringPool;

/**
 * wrapper 内部使用枚举
 *
 * @author miemie
 * @since 2018-07-30
 */
public enum WrapperKeyword implements ISqlSegment {
    /**
     * 只用作于辨识,不用于其他
     */
    APPLY(null),
    LEFT_BRACKET(StringPool.LEFT_BRACKET),
    RIGHT_BRACKET(StringPool.RIGHT_BRACKET);

    private final String keyword;

    WrapperKeyword(final String keyword) {
        this.keyword = keyword;
    }

    @Override
    public String getSqlSegment() {
        return keyword;
    }
}
